Sutron 8310 - Page 89

Sutron Corporation 8310 & 7310 Users Manual 8800-1125Rev. 2.7 (BETA) 4/16/2014 pg. 89
lower register of the register pair is used to contain the MSW.
RegisterType
The RegisterType property identifies the type of register to read from the target device.
The possible selections are: Input Register, Holding Register, Discrete Input, and Coil.
ExtendedRead
ExtendedRead makes it possible for the 8310 to read multiple consecutive registers
from a target device efficiently. When ExtendedRead is “Yes”, the 8310 will read
multiple consecutive registers in a single operation, and store the results in cache. Only
the designated TargetRegister value is output for the current input, but other MBSensor
inputs defined in the setup can retrieve values from the cache, rather than repeat the
register read from the target device.
MBSensor inputs will use a shared cache whenever the following properties are
identical across the MBSensor configurations: DeviceID, RegisterType, BaseRegister,
NumRegisters, and DeviceType as well as either COMPort or IPPort and IPAddress,
depending on the selected DeviceType.
BaseRegister
The BaseRegister property is avaialble only when ExtendedRead is “Yes”. The property
specifies the base register of the register set to read from the target device. Note: in the
8310, modbus register nunbers always start at 1 (not 0).
NumRegisters
The NumRegisters property is avaialble only when ExtendedRead is “Yes”. The property
specifies the number of consecutive registers to read from the target device.
MBDeviceType
Defines the type of communication used to talk to the target device. Possible values are
Serial and TCP/IP. When “Serial”, you also need to select the COMPort configured for
Modbus communications.
COMPort
This property is visible only when MBDeviceType is set to “Serial”. Use this property to
select the COM port configured fro Modbus communications. NOTE: you must configure
the COM port for Modbus using the Station Setup – Communications menu.
TCP/IP Settings
These settings are visible only when MBDeviceType is set to “Tcp”.
IPAddress
The TCP/IP address of the target device
IPPort
The IP Port to use in TCP/IP communications with the target
device
EnableLAN
Enable (turn on) LAN to ensure LAN interface is used for
transactions (as opposed to GPRS or other TCP/IP interface
that might be available; NOTE: the LAN when on, is always
favored)
Timeout